Shake-Proof Hook Fuse Positioning Stability
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Solution Overview
Problem
In power distribution systems, fuses can move unexpectedly during opening, interfering with controlled force application and movement, which is undesirable in applications like underground and pad-mounted systems.
Innovation Solution
A shake-proof hook is designed with a hook end and a coupling end, featuring a retaining portion and coupling rings that securely engage with the fuse, preventing unexpected movement by ensuring controlled force application and stable positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple hook is used to open the fuse, then the device complexity is reduced, but the fuse may move unexpectedly during opening, interfering with controlled force application
Solution Approach 1:
The hook is divided into two distinct ends: a hook end with a receptacle for engaging the fuse, and a coupling end with coupling rings for attaching to opening equipment. This segmentation allows each end to be optimized for its specific function while maintaining overall simplicity
Solution Approach 2:
The channel in the branch acts as an intermediary structure that guides and constrains the fuse position during opening, preventing unexpected movement while allowing controlled force application through the hook
2Ease of manufacture
If the hook structure is simplified, then ease of manufacture is improved, but the ability to prevent unexpected fuse movement is reduced
Solution Approach 1:
The hook design incorporates a channel that dynamically adapts to the fuse position during opening, providing guidance and constraint when needed while allowing smooth movement when force is applied. This dynamic behavior is achieved through the geometric configuration rather than complex mechanical components
Solution Approach 2:
The coupling rings extend along an axis different from the retaining portion, creating a three-dimensional configuration that provides stability in multiple directions. This dimensional approach prevents unexpected fuse movement without adding complex mechanical constraints
3Ease of operation
If the hook allows free movement of the fuse, then ease of operation is improved, but reliability of controlled opening is worsened
Solution Approach 1:
The channel in the branch preliminarily positions and guides the fuse before the opening force is applied, ensuring proper alignment and preventing unexpected movement. This preliminary action occurs as the fuse is inserted into the receptacle, preparing the system for controlled opening
Data Source
AI summary
A shake-proof hook is provided, which includes a hook end that defines a receptacle. The hook end includes a lead-in portion and a channel spaced apart from the lead-in portion. The shake-proof hook includes a coupling end coupled to the hook end. The coupling end includes a retaining portion and at least one coupling ring. The retaining portion extends along a first axis transverse to a longitudinal axis of the shake-proof hook and the at least one coupling ring extends along a second axis. The second axis is transverse to the longitudinal axis and the second axis is different than the first axis.


